20144405537403 has 16 divisors (see below), whose sum is σ = 31084796974080. Its totient is φ = 11365378891776.

The previous prime is 20144405537287. The next prime is 20144405537447. The reversal of 20144405537403 is 30473550444102.

It is not a de Polignac number, because 20144405537403 - 2¹³ = 20144405529211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20144405539403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6071247750 + ... + 6071251067.

It is an arithmetic number, because the mean of its divisors is an integer number (1942799810880).

Almost surely, 2^{20144405537403} is an apocalyptic number.

20144405537403 is a deficient number, since it is larger than the sum of its proper divisors (10940391436677).

20144405537403 is a wasteful number, since it uses less digits than its factorization.

20144405537403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12142498906.

The product of its (nonzero) digits is 806400, while the sum is 42.

The spelling of 20144405537403 in words is "twenty trillion, one hundred forty-four billion, four hundred five million, five hundred thirty-seven thousand, four hundred three".